CN219529538U

CN219529538U - Embedded fastener and connection structure

Info

Publication number: CN219529538U
Application number: CN202320405402.4U
Authority: CN
Inventors: 王佳伟
Original assignee: Zhejiang Guernai Fastener Manufacturing Co ltd
Current assignee: Zhejiang Guernai Fastener Manufacturing Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-08-15
Anticipated expiration: 2033-03-07

Abstract

The utility model discloses an embedded fastener which comprises a first cylinder, wherein a first anti-rotation block is arranged at the lower part of the first cylinder, a second cylinder is arranged at the lower part of the first anti-rotation block, a second anti-rotation block is arranged at the lower part of the second cylinder, a positioning table is arranged at the lower part of the second anti-rotation block, the cross section sizes of the first cylinder, the second cylinder and the positioning table are smaller than the cross section sizes of the first anti-rotation block and the second anti-rotation block, the first anti-rotation block and the second anti-rotation block are non-circular, and threaded holes are formed in the first cylinder. According to the utility model, the multistage sectional type anti-rotation block is arranged, so that the fastener is effectively prevented from loosening.

Description

Embedded fastener and connection structure

Technical Field

The utility model relates to the technical field of fasteners, in particular to an embedded fastener and a connecting structure.

Background

The bolt and nut matched connection mode is the spare part connection mode commonly used in the machine-building for fasten two spare parts together, when the part design, in order to consider the convenience of installation, improve installation accuracy and the fastness of connection, can sometimes inlay the fastener in the part, fix fastener and part through pouring or the mode of moulding plastics, when assembling like this, only need with another part direct with embedded fastener be connected can, but at present this kind of mode still has the disadvantage, when effort between two parts is great, at in-service use in-process, embedded fastener can become flexible, leads to two parts to produce the phenomenon of rocking relatively, can appear the risk that embedded fastener directly deviate from even, consequently, need improve this urgently.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides an embedded fastener and a connecting structure, which effectively prevent the fastener from loosening by arranging multistage sectional anti-rotation blocks.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the embedded fastener comprises a first column body, a first anti-rotation block is arranged at the lower portion of the first column body, a second column body is arranged at the lower portion of the first anti-rotation block, a second anti-rotation block is arranged at the lower portion of the second column body, a positioning table is arranged at the lower portion of the second anti-rotation block, the cross-sectional dimensions of the first column body, the second column body and the positioning table are smaller than those of the first anti-rotation block and the second anti-rotation block, the shape of the first anti-rotation block and the second anti-rotation block is non-circular, and threaded holes are formed in the first column body.

The outer contour shapes of the first anti-rotation block and the second anti-rotation block are consistent, and the outer contour shapes of the first anti-rotation block and the second anti-rotation block are regular hexagons or raceways.

The upper part of the first anti-rotation block is provided with a thickening part, and the thickening part and the first column body are integrally formed.

The first column body, the first anti-rotation block, the second column body, the second anti-rotation block and the positioning table are integrally formed and made of metal materials.

The diameter of the second column body is larger than that of the first column body.

The outer surface of the first cylinder is provided with a plurality of annular grooves, and the adjacent annular grooves are arranged at intervals.

The outer surface of the first cylinder is provided with a threaded part, and the outer side of the first cylinder is in threaded connection with a nut.

The end part of the first cylinder is provided with a limiting opening, and the cross section of the limiting opening is regular hexagon.

The utility model provides a connection structure of embedded fastener, includes the part, be equipped with the mounting groove in the part, the mounting groove lower part is equipped with the constant head tank, the locating bench inserts spacing in the constant head tank.

The utility model provides a connection structure of embedded fastener, includes the part, be equipped with the mounting groove in the part, the mounting groove lower part is equipped with the constant head tank, the locating bench inserts spacing in the constant head tank, the mounting groove opening part is equipped with the spacing groove, the spacing groove cross-section is regular hexagon, the nut inserts spacing inslot spacing.

The beneficial effects of the utility model are as follows:

the fastener main part is made through lathe processing by the metal piece, through setting up the locating bench, can realize the installation location when installing the fastener main part, improve the installation accuracy, through setting up non-circular first anti-rotation piece and second anti-rotation piece, not only can improve the area of contact with the packing material when pouring, prevent to appear rotating the phenomenon when the fastener main part receives the circumference force, stability when having improved the fastener main part fixed greatly, first anti-rotation piece and second anti-rotation piece interval set up, can form the ladder type structure, further improved the area of contact with the packing material, thereby the reliability of fastener main part is fixed has been improved, and after the fastener main part is embedded to accomplish, through first anti-rotation piece and second anti-rotation piece, can form "barb" structure, effectually prevented the fastener main part pine takes off.

Drawings

FIG. 1 is a schematic diagram of an embedded fastener;

FIG. 2 is a schematic diagram of a second embodiment of an embedded fastener;

FIG. 3 is a schematic diagram of an embedded fastener;

FIG. 4 is a schematic diagram of an embedded fastener;

FIG. 5 is a cross-sectional view I of an embedded fastener when embedded;

FIG. 6 is a partial cross-sectional view of a first part;

FIG. 7 is a second cross-sectional view of an embedded fastener when embedded;

fig. 8 is a partial cross-sectional view of a second part.

In the figure: 1. a first column; 2. a threaded hole; 3. a first anti-rotation block; 4. a second column; 5. a second anti-rotation block; 6. a positioning table; 7. a thickened portion; 8. an annular groove; 9. a threaded portion; 10. a nut; 11. a limit opening; 12. a part; 13. a mounting groove; 14. a positioning groove; 15. and a limit groove.

Detailed Description

The utility model is further described with reference to the drawings and detailed description which follow:

in the description of the present specification, the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc., are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or unit referred to must have a specific direction, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

As shown in fig. 1 to 8, an embedded fastener comprises a first column 1, a first anti-rotation block 3 is arranged at the lower part of the first column 1, a second column 4 is arranged at the lower part of the first anti-rotation block 3, a second anti-rotation block 5 is arranged at the lower part of the second column 4, a positioning table 6 is arranged at the lower part of the second anti-rotation block 5, the cross-sectional dimensions of the first column 1, the second column 4 and the positioning table 6 are smaller than those of the first anti-rotation block 3 and the second anti-rotation block 5, the shapes of the first anti-rotation block 3 and the second anti-rotation block 5 are non-circular, and the first column 1, the first anti-rotation block 3, the second column 4, the second anti-rotation block 5 and the positioning table 6 are integrally formed and are made of metal materials.

The utility model is embedded in a part 12, a mounting groove 13 is arranged in the part 12, a positioning groove 14 is arranged at the lower part of the mounting groove 13, and the positioning table 6 is inserted into the positioning groove 14 to limit.

As shown in fig. 5 and 6, when the utility model (i.e. the fastener body) is embedded, firstly, the utility model is inserted into the mounting groove 13 of the part 12, the positioning table 6 is inserted into the positioning groove 14 for limiting, and at this time, the material which is the same as the part is filled into the mounting groove 13 through the pouring process, so that the gap between the fastener body and the mounting groove 13 is filled with the material, thereby completing the mounting and fixing of the fastener body.

The fastener main part is made through lathe processing by the metal piece, through setting up locating bench 6, can realize the installation location when installing the fastener main part, improve the installation accuracy, through setting up non-circular first anti-rotation piece 3 and second anti-rotation piece 5, not only can improve the area of contact with the filler material when pouring, prevent to appear rotating the phenomenon when the fastener main part receives the circumference force, stability when having improved the fastener main part fixed greatly, first anti-rotation piece 3 and second anti-rotation piece 5 interval set up, can form stepped structure, further improved the area of contact with the filler material, thereby the fixed reliability of fastener main part has been improved, and after the fastener main part is embedded to accomplish, through first anti-rotation piece 3 and second anti-rotation piece 5, can form "barb" structure, effectually prevent that the fastener main part from taking off.

The first cylinder 1 is internally provided with a threaded hole 2, and when the fastener body is embedded, the threaded hole 2 is positioned outside the part 12, and can be connected with another part through the threaded hole 2.

The outline shape of the first anti-rotation block 3 is the same as that of the second anti-rotation block 5, specifically, the shape of the metal block commonly used in the market at present is mostly regular hexagon or circular, when the metal block is the regular hexagon, the outline shape of the first anti-rotation block 3 and the second anti-rotation block 5 is regular hexagon, at this moment, the shapes of the first column body 1, the second column body 4 and the positioning table 6 are formed only through turning, and the metal block is processed into the threaded hole 2 through drilling and tapping, so that the processing step is simple, and the production efficiency is high.

When the metal block is cylindrical, the outer contour shapes of the first anti-rotation block 3 and the second anti-rotation block 5 are racetrack shapes, and the fastener main body performs cutting operation on the processing technology when the metal block is regular hexagon, namely, the first anti-rotation block 3 and the second anti-rotation block 5 are cut into racetrack shapes from circles.

Preferably, the diameter of the second column 4 is larger than that of the first column 1, and by the above design, a stepped thickness structure can be formed, specifically, the thicknesses of the first column 1, the first anti-rotation block 3 and the second column 4 are different, so that the structural strength and the fixing reliability during embedding can be improved.

Preferably, the upper portion of the first anti-rotation block 3 is provided with a thickened portion 7, the thickened portion 7 and the first column 1 are integrally formed, the surface of the thickened portion 7 is an inclined surface, and the structural strength of the first column 1 can be improved by arranging the thickened portion 7.

Based on the above structure, there are two shapes of the outer surface of the first cylinder 1 of the fastener body:

the first shape, as shown in fig. 1, 2, 5 and 6, the outer surface of the first column 1 is provided with a plurality of annular grooves 8, and adjacent annular grooves 8 are arranged at intervals, and by arranging a plurality of annular grooves 8, the poured material can be embedded into the annular grooves 8 when the fastener main body is poured, so that the contact area between the outer surface of the first column 1 and the poured material is greatly increased, and the fixing reliability of the fastener main body is further improved.

In the second shape, as shown in fig. 3, 4, 7 and 8, the screw portion 9 is provided on the outer surface of the first column 1, and in this configuration, if casting is directly performed, the reliability of fixing the fastener body can be improved.

In the second shape, the outer side of the first cylinder 1 may be screwed with the nut 10, and a limit opening 11 is provided at the end of the first cylinder 1, the cross section of the limit opening 11 is regular hexagon, and when the fastener body is poured in this state, a limit groove 15 is provided at the end of the mounting groove 13, and the cross section size of the limit groove 15 is larger than that of the mounting groove 13, and the shape of the limit groove 15 is regular hexagon for fixing the nut 10.

When the fastener main body with the nut 10 is installed, the nut 10 is connected with the first column body 1, the fastener main body is inserted into the installation groove 13, the nut 10 is inserted into the limit groove 15 for fixing, at the moment, the hexagonal wrench can be used, the hexagonal wrench is inserted into the limit opening 11, the fastener main body is rotated, the fastener main body can ascend or descend through the threaded part 9, the position of the fastener main body is adjusted, the fastener main body is poured after the position adjustment, the installation position of the fastener main body can be adjusted through the nut 10, the installation precision of the fastener main body can be effectively improved, the fixing of the fastener main body at different positions can be realized, and more different occasions are applicable.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. An embedded fastener, characterized in that: including first cylinder (1), first cylinder (1) lower part is equipped with first anti-rotation piece (3), first anti-rotation piece (3) lower part is equipped with second cylinder (4), second cylinder (4) lower part is equipped with second anti-rotation piece (5), second anti-rotation piece (5) lower part is equipped with locating bench (6), the cross-sectional dimension of first cylinder (1), second cylinder (4) and locating bench (6) all is less than the cross-sectional dimension of first anti-rotation piece (3) and second anti-rotation piece (5), the shape of first anti-rotation piece (3) and second anti-rotation piece (5) is non-circular, first cylinder (1) inside is equipped with screw hole (2).

2. An in-line fastener as defined in claim 1, wherein: the outer contour shapes of the first anti-rotation block (3) and the second anti-rotation block (5) are identical, and the outer contour shapes of the first anti-rotation block (3) and the second anti-rotation block (5) are regular hexagons or raceways.

3. An in-line fastener as defined in claim 1, wherein: the upper part of the first anti-rotation block (3) is provided with a thickening part (7), and the thickening part (7) and the first column body (1) are integrally formed.

4. An in-line fastener as defined in claim 1, wherein: the first column body (1), the first anti-rotation block (3), the second column body (4), the second anti-rotation block (5) and the positioning table (6) are integrally formed and made of metal materials.

5. An in-line fastener as defined in claim 1, wherein: the diameter of the second column body (4) is larger than that of the first column body (1).

6. An in-line fastener as defined in claim 1, wherein: the outer surface of the first cylinder (1) is provided with a plurality of annular grooves (8), and the adjacent annular grooves (8) are arranged at intervals.

7. An in-line fastener as claimed in claim 2, wherein: the outer surface of the first cylinder (1) is provided with a threaded part (9), and the outer side of the first cylinder (1) is in threaded connection with a nut (10).

8. An in-line fastener as defined in claim 7, wherein: the end part of the first column body (1) is provided with a limiting opening (11), and the cross section of the limiting opening (11) is regular hexagon.

9. The utility model provides a connection structure of embedded fastener which characterized in that: the embedded fastener comprises a part (12) and the embedded fastener of claim 6, wherein a mounting groove (13) is formed in the part (12), a positioning groove (14) is formed in the lower portion of the mounting groove (13), and the positioning table (6) is inserted into the positioning groove (14) to limit.

10. The utility model provides a connection structure of embedded fastener which characterized in that: the embedded fastener comprises a part (12) and the embedded fastener of claim 8, wherein an installation groove (13) is formed in the part (12), a positioning groove (14) is formed in the lower portion of the installation groove (13), a positioning table (6) is inserted into the positioning groove (14) to be limited, a limiting groove (15) is formed in the opening of the installation groove (13), the cross section of the limiting groove (15) is regular hexagon, and a nut (10) is inserted into the limiting groove (15) to be limited.